CBIC Retired Practice Questions fully solved & updated

B. baseline testing and repeat TST/PPD skin test in 12 weeks after exposure An incubation period of 2 to 12 weeks is usually necessary after exposure to the TB bacteria inorder for the PPD test to be positive - ANSWER-A patient who is HIV-infected was admitted to the hospital with a diagnosis of pneumonia. Four days following admission, the patient is placed in airborne precautions for active pulmonary tuberculosis (TB). Culture and sensitivity testing of sputa indicates Mycobacterium tuberculosis resistant to Isoniazid. Potentially exposed employees should be offered which of the following: A. pyrazinamide (PZA) and rifampin for 6 months B. baseline testing and repeat TST/PPD skin test in 12 weeks after exposure C. chest x-ray in 6 months D. two-step TST/PPD skin testing per hospital protocol A. case control Case control is designed to help determine if an exposure is associated with an outcome - in this case a BSI - ANSWER-Which of the following studies should be completed if an outbreak of bloodstream infections have occurred in an ICU? A. case control B. experimental C. analytic D. cross sectional B. only the information needed Gathering data for surveillance purposes can be time consuming. Only collect the information required to meet the case definition under surveillance and any risk factors. - ANSWER-Which of the following should be included when designing a patient infection surveillance form? A. denominator information B. only the information needed C. as much information as possible D. medication history D. flow chart A Pareto chart is a bar and line graph that shows individual measures in descending order (bars) and the cumulative total ascending order (line). It is useful for showing the frequency of occurrences. Ishikawa diagram is a cause-effect analysis tool (fish-bone diagram). A run chart shows measured values over time, and a flow chart maps out how a process flows, step by step. - ANSWER-Which of the following is the best tool for identifying potential process failures? A. Pareto chart B. Ishikawa diagram C. run chart D. flow chart B. skin Diptheroids (Corynebacterium spp) are Gram-positive, aerobic bacilli. Most are opportunistic pathogens (except C. diptheria). They are skin flora for humans and animals. - ANSWER-A patient with leukemia has developed a healthcare-associated bloodstream infection with a multidrug resistant diptheroid. The MOST likely source of the organism is the patient's: A. respiratory tract B. skin C. colon D. genitourinary tract D. the recommended post-vaccination test is anti-HBs After a successful vaccination, one develops antibodies to the Hep B surface antigen (HBsAg). HBsAg testing is useful to diagnose recent Hep B infection - ANSWER-A safety officer at the fire department calls to ask why HBsAg testing is not done following Hepatitis B vaccination. The ICP's explanation should include which of the following? A. Hepatitis B vaccination inactivates HBsAg B. post-vaccination testing is not recommended C. Hepatitis B vaccination inactivates anti-HBs D. the recommended post-vaccination test is anti-HBs C. gap analysis A gap analysis will look at the differences in performance between current practice and recommended practice to determine whether recommendations are being met and, if not, what steps should be taken to ensure they are met successfully - ANSWER-An ICP is leading a multi-disciplinary performance improvement team to reduce the incidence of ventilator-associated pneumonia (VAP). The team wants to compare current practice with recommended practice and develop a plan to improve performance. Which of the following is the BEST technique to use for this activity? A. six sigma B. multivoting C. gap analysis D. failure-mode effect analysis (FMEA) C. interviewing the source, defining the exposure, notifying the discharged patients with true exposure, and reporting to the Office of Public Health Ensure there is a true exposure. This happens by talking to the source patient (and their physician). Once the infection is confirmed you must define an exposure. Most health departments will not do this for you (so, not A). Notification should only go to the patients that meet the exposure definition. Notifying everyone (B) would lead to unnecessary panic - ANSWER-A patient was admitted to the medical unit in a semi-private room. Three days after admission, the out patient report indicated pulmonary tuberculosis. In order to discharge the exposed patients in a timely manner, surveillance should include: A. forwarding a list of discharged patients to the Office of Public Health B. notifying discharged patients of the event and request follow-up C. interviewing the source, defining the exposure, notifying the discharged patients with true exposure, and reporting to the Office of Public Health D. defining exposure by interviewing the patient and filing information related to case exposure should there be needed for further surveillance B. staphylococcus aureus - ANSWER-In an outbreak of probable foodborne illness, patients developed symptoms 2 to 4 hours after eating turkey salad. The MOST likely causative organism is: A. Salmonella enteritidis B. Staphylococcus aureus C. Vibrio parahaemolyticus D. Clostridium perfringens B. IgM - ANSWER-The presence of which of the following antibodies to Hepatitis A virus confirms the diagnosis of acute hepatitis A? A. IgG B. IgM C. IgE D. IgD A. Time, place and person - ANSWER-In investigating an epidemic, cases should be categorized according to: A. time, place, and person B. agent, host, and environment C. agent, host, and date of onset D. time, person, and date of onset B. 15 days - ANSWER-The lengths of stay for patients with healthcare associated infections are 12, 12, 12, 13, 15, 15, 16, 20, and 30 days. What is the median length of stay? A. 12 days B. 15 days C. 16 days D. 25 days C. intermittent catherization - ANSWER-The risk of healthcare associated urinary tract infections in spinal cord injury patients is best reduced by: A. prophylactic antibiotics B. bladder instillation of antiseptic C. intermittent catheterization D. placement of all patients with urinary catheters in the same area C. use only sterile fluids in reservoirs - ANSWER-Which of the following precautions MUST be taken when using respiratory ventilators? A. use gloves when assembling equipment B. use only disposable equipment C. use only sterile fluids in reservoirs D. discard unused portions of medication daily B. psychomotor learning - ANSWER-A student demonstrates appropriate tracheostomy suctioning technique to an instructor. This is an example of: A. cognitive learning B. psychomotor learning C. affective learning D. theoretical learning D. 30% - ANSWER-A long-term care facility has 180 residents, 50 of whom have indwelling urinary catheters. An infection preventionist (IP) notes 15 catheterized residents have developed urinary tract infections during 1 month. Which of the following is the attack rate? A. 3% B. 8.3% C. 28% D. 30%